A (very) trivial example

static ImNodes::CanvasState canvas;if (ImGui::Begin("ImNodes",nullptr, ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoScrollWithMouse)){ImNodes::BeginCanvas(&canvas);structNode    {        ImVec2 pos{};bool selected{};        ImNodes::Ez::SlotInfo inputs[1];        ImNodes::Ez::SlotInfo outputs[1];    };static Node nodes[3] = {        {{50,100},false, {{"In",1}}, {{"Out",1}}},        {{250,50},false, {{"In",1}}, {{"Out",1}}},        {{250,100},false, {{"In",1}}, {{"Out",1}}},    };for (Node& node : nodes)    {if (ImNodes::Ez::BeginNode(&node,"Node Title", &node.pos, &node.selected))        {ImNodes::Ez::InputSlots(node.inputs,1);ImNodes::Ez::OutputSlots(node.outputs,1);ImNodes::Ez::EndNode();        }    }ImNodes::Connection(&nodes[1],"In", &nodes[0],"Out");ImNodes::Connection(&nodes[2],"In", &nodes[0],"Out");ImNodes::EndCanvas();}ImGui::End();